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Snezhnost [94]
4 years ago
15

Please help! The position equation for a particle is s(t)= sqrt(2t + 1) where s is measured in feet and t is measured in seconds

. Find the acceleration of the particle at 4 seconds.
a. 3 ft/sec^2
b. 1/3 ft/sec^2
c. -1/27 ft/sec^2
d. none of these

Mathematics
1 answer:
Scorpion4ik [409]4 years ago
7 0
The answer is C. Note that acceleration is just the second derivative of displacement.

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Step-by-step explanation:

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3 years ago
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 lower than in the first
Bess [88]

Answer:

  • $5000 in the first city
  • $4000 in the second city

Step-by-step explanation:

Let x represent the pre-tax hotel charge in the first city in dollars. Then the hotel charge in the second city is x-1000 dollars, and the total tax is ...

... 7.5%·x +5%·(x -1000) = 575

... 12.5%·x = 625 . . . . simplify, add 50

... x = 5000 . . . . . . . . divide by 12.5% (=0.125)

The first-city charge was $5000; the second-city charge was $4000.

8 0
4 years ago
If ∠A and ∠B are complementary, find the value of x given that ∠A=3x-2 and ∠B=x+12
xxMikexx [17]

Answer:

x=20 degrees

Step-by-step explanation:

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(3x-2)+(x+12)=90

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6 0
3 years ago
Which of the following sets of inequalities​
Ludmilka [50]

Inequalities help us to compare two unequal expressions. The correct options are 2 and 3.

<h3>What are inequalities?</h3>

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.

The inequality for the red portion is,

slope, m = (-2/-4) = 1/2

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y ≤ (1/2)x + 2

The inequality for the blue portion is,
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y-intercept is -1.

y > 2x - 1

Hence, the correct options are 2 and 3.

Learn more about Inequality:

brainly.com/question/19491153

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2 years ago
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Klio2033 [76]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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